Hello people. Sorry to jump in, I'm not really a "hied-admin" just a "ZCS-admin" 8) I wonder if any of you managed to get a workarround to bug 21750. http://bugzilla.zimbra.com/show_bug.cgi?id=21750 The aim is to be able to share a single resource (conference room for example) between several domains (all setup on the same ZCS platform)... Thanks a lot, David.